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公开(公告)号：US06497846B1
公开(公告)日：2002-12-24
申请号：US09370885
申请日：1999-08-10
IPC分类号： F01N300
CPC分类号： F01N3/0835 , B01D53/944 , B01D53/9495 , F01N3/0814 , F01N3/0871 , F01N3/2828 , F02B2075/125 , F02D41/0255 , F02D41/402 , F02D41/405 , F02D2041/389 , F02D2200/0802 , Y02T10/123 , Y02T10/26 , Y02T10/44
摘要： An exhaust gas purifying system for a cylinder direct internal combustion engine having a fuel injector valve for directly injecting fuel into a combustion chamber of the engine. The exhaust gas purifying system comprises an adsorbent catalytic converter disposed in an exhaust gas passageway of the engine. The adsorbent catalytic converter including a catalytic element having an adsorption layer. The adsorption layer contains an adsorbent for adsorbing HC (hydrocarbons) of exhaust gas in a first temperature range and to release the adsorbed HC in a second temperature range which is high relative to the first temperature range, and a catalyst component for promoting reaction for oxidizing HC which is released from the adsorbent. A control unit is provided to be programmed to carry out (a) judging that a temperature of the adsorption layer has reaches a releasing level relating to the second temperature range, so as to make a first judgment result; (b) judging that a temperature of exhaust gas flown into the adsorbent catalytic converter will rise upon injection of an additional fuel from the fuel injector valve into the combustion chamber during a time period including an expansion stroke and an exhaust stroke of the engine, so as to make a second judgment result; and (c) causing the fuel injector valve to controllably inject the additional fuel during the time period including the expansion stroke and the exhaust stroke of the engine upon making both the first and second judgment results.
摘要翻译： 一种用于汽缸直接内燃机的排气净化系统，其具有用于将燃料直接喷射到发动机的燃烧室中的燃料喷射阀。 排气净化系统包括设置在发动机的排气通道中的吸附催化转化器。 该吸附剂催化转化器包括具有吸附层的催化元件。 吸附层含有用于在第一温度范围内吸附废气的HC（烃）的吸附剂，并且在相对于第一温度范围高的第二温度范围内释放吸附的HC，以及用于促进氧化反应的催化剂组分 HC从吸附剂中释放出来。 提供控制单元进行编程以执行（a）判断吸附层的温度达到与第二温度范围有关的释放水平，以便作出第一判断结果; （b）判断在包括发动机的膨胀冲程和排气冲程在内的时间段期间，从燃料喷射阀向燃烧室喷射附加燃料时，判断流入吸附剂催化转化器的废气的温度升高，因此 作出第二判断结果; 以及（c）在进行第一和第二判断结果的同时，在包括发动机的膨胀冲程和排气冲程的时间段期间使燃料喷射阀可控制地喷射附加燃料。
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公开(公告)号：US06289673B1
公开(公告)日：2001-09-18
申请号：US09418255
申请日：1999-10-15
IPC分类号： F01N300
CPC分类号： F02D41/0295 , F02D41/1441 , F02D41/1456 , F02D41/1475 , F02D41/187 , F02D2200/0814 , F02D2200/0816
摘要： A catalyst in an exhaust passage for an engine is capable of storing oxygen. A memory stores, as an oxygen storage capacity, an oxygen storage amount at the time of change of the downstream air-fuel ratio on the downstream side of the catalyst from stoichiometric to lean. A processor calculates the current oxygen storage amount accurately in due consideration of a fast oxygen absorbing rate in the case of the downstream air-fuel ratio being stoichiometric, and a slow oxygen absorbing rate in the case of the downstream air-fuel ratio being lean, and controls the air-fuel ratio of the exhaust gas mixture flowing into the catalyst so as to bring the oxygen storage amount in a region under the oxygen storage capacity.
摘要翻译： 用于发动机的排气通道中的催化剂能够储存氧气。 存储器将催化剂下游侧的下游空燃比从化学计量比变化为稀，存储作为储氧能力的氧储存量。 在下游空燃比为化学计量的情况下，处理器适当考虑到快速氧吸收速率，并且在下游空燃比为稀的情况下，缓慢的氧吸收速率，精确地计算出当前的氧气储存量， 并且控制流入催化剂的排气混合物的空燃比，以将氧气储存量保持在储氧能力以下的区域。
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公开(公告)号：US06220017B1
公开(公告)日：2001-04-24
申请号：US09338435
申请日：1999-06-23
申请人： Akira Tayama , Toshikazu Shiino , Hirofumi Tsuchida , Keiji Okada
发明人： Akira Tayama , Toshikazu Shiino , Hirofumi Tsuchida , Keiji Okada
IPC分类号： F01N300
CPC分类号： F01N11/007 , F01N2430/06 , F01N2550/02 , F02D41/0235 , F02D41/1456 , Y02T10/47
摘要： An exhaust emission control system for an internal combustion engine is provided. The exhaust emission control system comprises a catalytic converter disposed in an exhaust passage of the engine, a wide-range A/F ratio sensor disposed in the exhaust passage at a location downstream of the catalytic converter for detecting an A/F ratio of a mixture supplied to the engine, and a control unit including a detecting section for detecting the degree of water gas reaction caused in the catalytic converter and a correcting section for correcting a detected value of the A/F ratio on the basis of the degree of water gas reaction.
摘要翻译： 提供了一种用于内燃机的废气排放控制系统。 废气排放控制系统包括设置在发动机的排气通道中的催化转化器，设置在催化转化器下游位置处的排气通道中的宽范围A / F比传感器，用于检测混合物的A / F比 提供给发动机的控制单元，以及控制单元，其包括用于检测在催化转化器中引起的水煤气反应程度的检测部分和用于基于水煤气的程度校正A / F比的检测值的校正部分 反应。
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公开(公告)号：US06381954B1
公开(公告)日：2002-05-07
申请号：US09873205
申请日：2001-06-05
IPC分类号： F01N300
CPC分类号： F02D41/0295 , F02D41/1456 , F02D2200/0814 , F02D2200/0816
摘要： In an automotive vehicle with at least one catalyst located in an exhaust passage for adsorbing oxygen contained within exhaust gases entering the catalyst, and an air/fuel ratio sensor located in the exhaust passage upstream of the catalyst for detecting an air/fuel ratio based on a percentage of oxygen contained within the exhaust gases flowing through the exhaust passage and entering the catalyst, an air/fuel ratio control system controls an air/fuel mixture ratio of the engine at as close to stoichiometric as possible, an air/fuel ratio control system calculates a quantity of oxygen stored in the catalyst on the basis of a deviation of the air/fuel ratio detected by the air/fuel ratio sensor from a stoichiometric air/fuel ratio to produce informational data indicative of a calculated value of the quantity of oxygen stored. The control system controls the air/fuel mixture ratio of the engine so that the calculated value of the quantity of oxygen stored is adjusted to a desired value. The control system has a limiter capable of preventing the calculated value of the quantity of oxygen stored from exceeding a specified level.
摘要翻译： 在具有位于排气通道中的至少一种催化剂的机动车辆中，用于吸附进入催化剂的废气中所含的氧气;以及空气/燃料比传感器，位于催化剂上游，用于检测空燃比，基于 空气/燃料比控制系统控制发动机的空气/燃料混合比在尽可能接近化学计量的空气/燃料比控制 系统基于由空气/燃料比传感器检测的空气/燃料比与化学计量空气/燃料比的偏差来计算存储在催化剂中的氧气的量，以产生指示计算值的计算值的信息数据 氧气储存。 控制系统控制发动机的空气/燃料混合比，使得存储的氧气量的计算值被调节到期望值。 控制系统具有限制器，其能够防止存储的氧气的量的计算值超过指定水平。
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公开(公告)号：US06912989B2
公开(公告)日：2005-07-05
申请号：US10808302
申请日：2004-03-25
IPC分类号： F02B23/10 , F02B75/12 , F02D41/06 , F02D41/14 , F02D41/18 , F02D41/30 , F02D41/34 , F02D41/40 , F02M45/04 , F02B3/02 , F02F3/26
CPC分类号： F02D41/3029 , F02B23/101 , F02B23/104 , F02B2075/125 , F02D41/009 , F02D41/062 , F02D41/1454 , F02D41/18 , F02D41/3076 , F02D41/401 , F02D41/403 , F02D2200/0602 , F02D2200/602 , F02D2250/18 , F02M45/04 , Y02T10/123 , Y02T10/125 , Y02T10/44
摘要： A fuel injection control device for a direct fuel injection engine is configured to selectively control a fuel injection valve, which is configured and arranged to directly inject a first fuel stream per cycle into a combustion chamber, to use a first fuel injection timing when the controller determines that a stratified air-fuel mixture will be difficult to form during a second fuel injection timing based on a determination of an engine operation parameter by at least one sensor. The first fuel injection timing is set to control the injection valve to inject the first fuel stream during an intake stroke while a piston in the combustion chamber is approximately at an intake top dead center position such that a majority of the first fuel stream injected from the fuel injection valve is received inside a cavity formed on the piston.
摘要翻译： 一种用于直接燃料喷射发动机的燃料喷射控制装置被配置为选择性地控制燃料喷射阀，该燃料喷射阀被构造和布置为将每个循环的第一燃料流直接喷射到燃烧室中，以在控制器中使用第一燃料喷射正时 确定在基于由至少一个传感器确定发动机操作参数的第二燃料喷射正时期间难以形成分层的空气 - 燃料混合物。 第一燃料喷射正时被设定为控制喷射阀在进气冲程期间喷射第一燃料流，同时燃烧室中的活塞大致处于进气上止点位置，使得大部分从第一燃料流喷射的第一燃料流 燃料喷射阀被容纳在形成在活塞上的腔内。
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公开(公告)号：US07121087B2
公开(公告)日：2006-10-17
申请号：US09974878
申请日：2001-10-12
申请人： Isamu Hotta , Toshikazu Shiino , Akira Tayama , Hirofumi Tsuchida
发明人： Isamu Hotta , Toshikazu Shiino , Akira Tayama , Hirofumi Tsuchida
IPC分类号： F01N3/02
CPC分类号： F01N3/0835 , F01N3/0807 , F01N3/0814 , F01N3/32 , F01N13/009 , F01N13/0097
摘要： In an exhaust path, a HC trapping material which traps HC contained in exhaust gas temporarily, a H2O trap which traps H2O contained in exhaust gas and a CO oxidation catalyst are arranged in this order from the upstream side, wherein the H2O trap is disposed just upstream of and close to the CO oxidation catalyst. H2O and HC which are components disturbing the activity of the CO oxidation catalyst can be removed efficiently and the adsorption heat and condensation heat of H2O can be efficiently utilized to raise the temperature of the CO oxidation catalyst so that early activation of the CO oxidation catalyst is accomplished just after an engine starts.
摘要翻译： 在排气路径中，临时捕集废气中含有HC的HC捕集材料，捕集废气中含有H 2 O 2的H 2 O 2捕集阱和CO氧化 催化剂从上游侧按此顺序排列，其中H 2 O阱捕获器恰好位于CO氧化催化剂的上游并且靠近CO氧化催化剂。 可以有效地除去作为CO氧化催化剂的活性的成分的H 2 O和HC，可有效利用H 2 O 2的吸附热和冷凝热 提高CO氧化催化剂的温度，以便在发动机起动之后完成CO氧化催化剂的早期活化。
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公开(公告)号：US20060032478A1
公开(公告)日：2006-02-16
申请号：US11187235
申请日：2005-07-22
申请人： Akira Tayama , Hirofumi Tsuchida , Koji Hiraya , Yutaka Matayoshi
发明人： Akira Tayama , Hirofumi Tsuchida , Koji Hiraya , Yutaka Matayoshi
CPC分类号： F02B23/101 , Y02T10/125
摘要： In a direct injection internal combustion engine, a fuel injection valve and a spark plug of adjacent cylinders are inclined at different angles from each other in directions perpendicular to a cylinder arrangement direction in which the cylinders are arranged. Besides, the fuel injection valve and the spark plug of at least one of the cylinders are inclined at different angles from each other in directions parallel to the cylinder arrangement direction. A cooling channel is provided between the fuel injection valve and the spark plug of the at least one of the cylinders.
摘要翻译： 在直喷式内燃机中，相邻气缸的燃料喷射阀和火花塞在与配置气缸的气缸排列方向垂直的方向上以不同的角度倾斜。 此外，至少一个气缸的燃料喷射阀和火花塞在与气缸排列方向平行的方向上以不同的角度倾斜。 在燃料喷射阀和至少一个气缸的火花塞之间设置冷却通道。
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公开(公告)号：US06282889B1
公开(公告)日：2001-09-04
申请号：US09516498
申请日：2000-03-01
IPC分类号： F01N300
CPC分类号： F02D41/0295 , F02D41/1456 , F02D2200/0814 , F02D2200/0816
摘要： In an automotive vehicle with at least one catalyst located in an exhaust passage for adsorbing oxygen contained within exhaust gases entering the catalyst, and an air/fuel ratio sensor located in the exhaust passage upstream of the catalyst for detecting an air/fuel ratio based on a percentage of oxygen contained within the exhaust gases flowing through the exhaust passage and entering the catalyst, an air/fuel ratio control system controls an air/fuel mixture ratio of the engine at as close to stoichiometric as possible, an air/fuel ratio control system calculates a quantity of oxygen stored in the catalyst on the basis of a deviation of the air/fuel ratio detected by the air/fuel ratio sensor from a stoichiometric air/fuel ratio to produce informational data indicative of a calculated value of the quantity of oxygen stored. The control system controls the air/fuel mixture ratio of the engine so that the calculated value of the quantity of oxygen stored is adjusted to a desired value. The control system has a limiter capable of preventing the calculated value of the quantity of oxygen stored from exceeding a specified level.
摘要翻译： 在具有位于排气通道中的至少一种催化剂的机动车辆中，用于吸附进入催化剂的废气中所含的氧气;以及空气/燃料比传感器，位于催化剂上游，用于检测空燃比，基于 空气/燃料比控制系统控制发动机的空气/燃料混合比在尽可能接近化学计量的空气/燃料比控制 系统基于由空气/燃料比传感器检测的空气/燃料比与化学计量空气/燃料比的偏差来计算存储在催化剂中的氧气的量，以产生指示计算值的计算值的信息数据 氧气储存。 控制系统控制发动机的空气/燃料混合比，使得存储的氧气量的计算值被调节到期望值。 控制系统具有限制器，其能够防止存储的氧的量的计算值超过规定的水平。
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公开(公告)号：US07188589B2
公开(公告)日：2007-03-13
申请号：US11187235
申请日：2005-07-22
申请人： Akira Tayama , Hirofumi Tsuchida , Koji Hiraya , Yutaka Matayoshi
发明人： Akira Tayama , Hirofumi Tsuchida , Koji Hiraya , Yutaka Matayoshi
CPC分类号： F02B23/101 , Y02T10/125
摘要： In a direct injection internal combustion engine, a fuel injection valve and a spark plug of adjacent cylinders are inclined at different angles from each other in directions perpendicular to a cylinder arrangement direction in which the cylinders are arranged. Besides, the fuel injection valve and the spark plug of at least one of the cylinders are inclined at different angles from each other in directions parallel to the cylinder arrangement direction. A cooling channel is provided between the fuel injection valve and the spark plug of the at least one of the cylinders.
摘要翻译： 在直喷式内燃机中，相邻气缸的燃料喷射阀和火花塞在与配置气缸的气缸配置方向垂直的方向上以不同的角度倾斜。 此外，至少一个气缸的燃料喷射阀和火花塞在与气缸排列方向平行的方向上以不同的角度倾斜。 在燃料喷射阀和至少一个气缸的火花塞之间设置冷却通道。
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公开(公告)号：US06477833B2
公开(公告)日：2002-11-12
申请号：US09855704
申请日：2001-05-16
IPC分类号： F01N300
CPC分类号： F01N3/0864 , B01D53/9431 , F01N3/0814 , F01N3/0842 , F01N13/009 , F01N2570/14 , F01N2570/16 , F02D41/0275 , F02D41/405 , F02D2200/0806 , F02D2200/0814 , Y02A50/2344 , Y02T10/44
摘要： An upstream catalyst (12) which stores oxygen in exhaust gas and releases the stored oxygen for oxidizing a reducing agent component contained in the exhaust gas, and a downstream catalyst (13) which stores nitrogen oxides in the exhaust gas and releases the stored nitrogen oxides by reducing the stored nitrogen oxides by the reducing agent component contained in the exhaust gas, are provided in an exhaust passage (11) of an engine (2). When the storage amount of nitrogen oxides of the downstream catalyst (13) reaches a predetermined value, additional fuel is injected from a fuel injector (7) after combustion, and stored oxygen in the upstream catalyst (12) is released by the reducing agent components in the additional fuel. After release of oxygen, the supply of the additional fuel is stopped and the supply of the main fuel is increased.
摘要翻译： 一种上游催化剂（12），其在废气中储存氧气并释放用于氧化废气中所含的还原剂成分的储存氧气，以及在废气中存储氮氧化物的下游催化剂（13），并释放储存的氮氧化物 在发动机（2）的排气通路（11）中设置有由废气中所含的还原剂成分来还原储存的氮氧化物。 当下游催化剂（13）的氮氧化物的储存量达到预定值时，在燃烧后从燃料喷射器（7）喷射附加燃料，并且上游催化剂（12）中的氧气被还原剂组分 在额外的燃料。 在释放氧气之后，停止供应附加燃料并增加主燃料的供应。
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